1 /* $NetBSD: hrtimer.h,v 1.7 2021/12/19 11:55:47 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_HRTIMER_H_ 33 #define _LINUX_HRTIMER_H_ 34 35 #include <sys/types.h> 36 37 #include <sys/callout.h> 38 39 #include <linux/ktime.h> 40 #include <linux/timer.h> 41 42 enum hrtimer_mode { 43 HRTIMER_MODE_ABS, 44 HRTIMER_MODE_REL, 45 HRTIMER_MODE_REL_PINNED, 46 }; 47 48 struct hrtimer { 49 enum hrtimer_restart (*function)(struct hrtimer *); 50 51 struct callout hrt_ch; 52 enum hrtimer_mode hrt_mode; 53 ktime_t hrt_expires; 54 }; 55 56 enum hrtimer_restart { 57 HRTIMER_NORESTART, 58 HRTIMER_RESTART, 59 }; 60 61 #define hrtimer_active linux_hrtimer_active 62 #define hrtimer_add_expires_ns linux_hrtimer_add_expires_ns 63 #define hrtimer_cancel linux_hrtimer_cancel 64 #define hrtimer_forward linux_hrtimer_forward 65 #define hrtimer_forward_now linux_hrtimer_forward_now 66 #define hrtimer_init linux_hrtimer_init 67 #define hrtimer_set_expires linux_hrtimer_set_expiresp 68 #define hrtimer_start linux_hrtimer_start 69 #define hrtimer_start_range_ns linux_hrtimer_start_range_ns 70 71 void hrtimer_init(struct hrtimer *, clockid_t, enum hrtimer_mode); 72 void hrtimer_set_expires(struct hrtimer *, ktime_t); 73 void hrtimer_add_expires_ns(struct hrtimer *, uint64_t); 74 void hrtimer_start(struct hrtimer *, ktime_t, enum hrtimer_mode); 75 void hrtimer_start_range_ns(struct hrtimer *, ktime_t, uint64_t, 76 enum hrtimer_mode); 77 int hrtimer_cancel(struct hrtimer *); 78 bool hrtimer_active(struct hrtimer *); 79 uint64_t hrtimer_forward(struct hrtimer *, ktime_t, ktime_t); 80 uint64_t hrtimer_forward_now(struct hrtimer *, ktime_t); 81 82 #endif /* _LINUX_HRTIMER_H_ */ 83